Compressors, Gas Turbines and Jet Engines The clearance volume of the air compressor is kept minimum because It permits isothermal compression It allows maximum compression to be achieved It greatly affects volumetric efficiency It results in minimum work It permits isothermal compression It allows maximum compression to be achieved It greatly affects volumetric efficiency It results in minimum work ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The ratio of isentropic work to Euler work is known as Polytropic reaction Pressure coefficient Slip factor Work coefficient Polytropic reaction Pressure coefficient Slip factor Work coefficient ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The air-fuel ratio in gas turbines is of the order of 50: 1. 7: 1 30: 1 15: 1 50: 1. 7: 1 30: 1 15: 1 ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Ratio of indicated H.P. and brake H.P. is known as Mechanical efficiency Adiabatic efficiency Volumetric efficiency Isothermal efficiency Mechanical efficiency Adiabatic efficiency Volumetric efficiency Isothermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines Axial flow compressor has the following advantage over centrifugal compressor Higher average velocities Larger air handling ability per unit frontal area Aerofoil blades are used Higher pressure ratio per stage Higher average velocities Larger air handling ability per unit frontal area Aerofoil blades are used Higher pressure ratio per stage ANSWER DOWNLOAD EXAMIANS APP
Compressors, Gas Turbines and Jet Engines The maximum temperature in a gas turbine is 700°C 1000°C 500°C 200°C 700°C 1000°C 500°C 200°C ANSWER DOWNLOAD EXAMIANS APP
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